Explanations:The Indian Railways is a vast network that is divided into several zones, each with its own headquarters and operational responsibilities. The zones are designed to manage the vast railway network efficiently. Each zone has its own unique characteristics, including the length of railway tracks, the number of trains, and the geographical area it covers.
The Western Railway zone, headquartered in Mumbai, is one of the 17 zones of the Indian Railways. However, it is not the largest zone in terms of the length of railway tracks. The Northern Railway zone, headquartered in New Delhi, is the largest zone by this measure. The Northern Railway zone covers a vast area and has the longest network of railway tracks among all the zones.
Regarding the second statement, the Metro Railway is not a part of the Indian Railways zones. The Metro Railway is a separate entity that operates urban rapid transit systems in various cities across India. It is not considered a railway zone of the Indian Railways. The latest addition to the railway zones of the Indian Railways is the Northeast Frontier Railway, which was formed in 1958 and covers the northeastern states of India.
Therefore, both statements are incorrect. The Western Railway zone is not the largest by track length, and the Metro Railway is not a railway zone of the Indian Railways. This makes option D, "Neither 1 nor 2 is correct," the correct answer.